Melanosis of the Bladder

Stuhldreher, Peter; Ponsky, Lee; MacLennan, Gregory T.

doi:10.1016/j.juro.2011.02.028

Cited by 8 publications

(6 citation statements)

References 4 publications

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“…Bladder melanosis, characterized by abnormal melanin deposits within bladder urothelium, is a very rare finding. 1 Melanosis is more commonly seen on the skin, oral cavity, genitalia, and conjunctiva. 1 It has a male predisposition, and most patients are over the age of 40 years, with a range of 43-86 years.…”

Section: Discussionmentioning

confidence: 99%

“…1 Melanosis is more commonly seen on the skin, oral cavity, genitalia, and conjunctiva. 1 It has a male predisposition, and most patients are over the age of 40 years, with a range of 43-86 years. 1,2 The earliest report in the literature of bladder melanosis is from 1986 and reports on two male patients with pigmentation of the prostatic and bladder urothelium due to melanin.…”

Section: Discussionmentioning

confidence: 99%

“…Bladder melanosis is a rare, benign condition caused by deposition of melanin within urothelial cells, not extending deeper than the lamina propria. 1 It presents with a nonspecific symptomatology and is identified during flexible cystoscopy. We present a case of bladder melanosis identified due to ultrasound abnormalities during the work up of an 81-year-old man with bladder outlet obstruction symptoms.…”

Section: Introductionmentioning

confidence: 99%

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Bladder Melanosis

Hogan

Meyer

Hennessey

2022

Journal of Endoluminal Endourology

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This case report describes a rare cystoscopic finding in an octogenarian, presenting initially with nonspecific lower urinary tract symptoms. Physical examination did not reveal any abnormal skin or mucoepi-dermoid pigmentation. Routine ultrasound identified cystic changes in the bladder prompting cystoscopic investigation. Flexible cystoscopy identified melanin deposits within the bladder mucosa, and biopsy subsequently confirmed a diagnosis of bladder melanosis. The authors of this report wish to add to the available literature on this extremely rare finding in the hope a more robust evidence base would allow a protocol to be established for follow-up. The ultrasound findings reported in this study have not been previouslyreported and may benefit future guidelines on diagnosis.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bladder Melanosis

Hogan

Meyer

Hennessey

2022

Journal of Endoluminal Endourology

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“…Final diagnosis can only be confirmed by careful histopathological examination to exclude the main differential diagnosis of primary or metastatic malignant melanoma. The natural history of bladder melanosis is poorly understood due to the limited number of cases reported6; nonetheless, the general behaviour of bladder melanosis seems to be benign. A follow-up cystoscopic examination is recommended 7…”

Section: Discussionmentioning

confidence: 99%

Unusual case of simple urinary bladder melanosis with complete resolution

Mera¹,

Patel

Qassid

et al. 2018

BMJ Case Reports

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A 66-year-old man presented with a long history of recurrent attacks of urinary retention and lower urinary tract symptoms. Flexible cystoscopy showed a urethral stricture. Follow-up cystoscopy 7 years later for recurrent symptoms demonstrated unusual extensive mucosal brown to black pigmentation, which proved histopathologically to be a simple bladder melanosis. Follow-up demonstrated complete resolution over a period of 1 year with no specific treatment. In this report, we highlighted a rare bladder abnormality with uncertain natural history.

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“…Melanosis is a descriptive term used for dark brown-black tissue pigmentation due to melanine deposition [1]. Melanosis has been seen in several other organs such as the skin, colon and oral mucosa [2].…”

Section: Discussionmentioning

confidence: 99%

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2017

UNOAJ

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Melanosis of the Bladder

Cited by 8 publications

References 4 publications

Bladder Melanosis

Bladder Melanosis

Unusual case of simple urinary bladder melanosis with complete resolution

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